As the name states, contact registries securely store contact information from groups of reasonably well-characterized patients (or primary supporters/caregivers) who are interested in being informed about ongoing or future research opportunities. Pulmonary fibrosis (PF) is a condition for which effective therapies have remained elusive, making drug trials and interventional research studies a mainstay in the PF arena over the last decade and for the foreseeable future. A PF Contact Registry will be a conduit to collect, analyze, and disseminate de-identified, group-level data on the clinical phenotypes of PF patients and will house contact information from patients who wish to be informed about research opportunities for which they may qualify. Data contained in the Registry will help inform research hypotheses and guide investigators as they develop research protocols by providing them with numbers of potential subjects who meet particular inclusion/exclusion criteria.